The Cisco ISR4331/K9 V02 from the 4000 Series is a powerful and scalable integrated services router designed for enterprise and branch office deployments. With built-in 3x Gigabit Ethernet ports, 2 NIM slots, and 1 SM slot, this router provides excellent flexibility for diverse WAN, LAN, and service module configurations. Featuring up to 100 Mbps of default throughput (upgradable to 300 Mbps with a performance license), the ISR4331 is built to support advanced voice, security, application visibility, and WAN optimization services in a single platform.
Refurbished to meet enterprise standards, this unit is extensively tested and 100% functional, offering excellent value for professional networking environments.
Key Features & Benefits:
Enterprise-Grade Performance Up to 100 Mbps aggregate throughput, expandable to 300 Mbps with performance license.
Highly Modular Design 2x NIM slots and 1x SM slot for advanced flexibility and expansion.
3x Integrated Gigabit Ethernet Ports Ideal for WAN and LAN connectivity.
Robust Memory & Storage 4GB DDR3 ECC DRAM and 4GB Flash memory (expandable).
Secure & Scalable Supports IP Base and advanced services with redundancy, OIR support, and integrated USB/console ports.
Compact 1RU Design Fits easily in rack-mounted environments, saving space and improving airflow.
Ideal Uses:
Enterprise Branch Offices Seamless integration of voice, data, and application services.
Managed Service Providers High-performance routing with modular scalability.
Retail/Distributed Networks Secure and reliable connectivity with flexible WAN options.
Voice & Collaboration Gateways Enables unified communication deployments with optional voice module support.
Specifications
Condition:
Refurbished device with minor scratches and scuffs. Device has undergone extensive testing and is fully functional.
Manufacturer & Model:
Cisco ISR4331/K9 V02
Form Factor:
1U Rackmount Integrated Services Router
Performance:
Default Throughput: 100 Mbps
Performance License Throughput: Up to 300 Mbps
CEF-Only Throughput (Boost): Over 2 Gbps
Port Configuration:
3x Integrated Gigabit Ethernet Ports
2x NIM Slots
1x SM (Service Module) Slot
1x ISC Slot (Internal Services Card)
1x USB 2.0 Type-A
1x Mini-USB Console Port
1x RJ45 Serial Console Port
1x RJ45 Auxiliary Port
Memory & Storage:
Default DRAM: 4 GB DDR3 ECC
Max DRAM: 16 GB
Flash Memory: 4 GB (Default), Up to 16 GB Supported
Power & Cooling:
Power Supply: Internal AC
Voltage Range: 100240 VAC
Input Current: 31.3 A
Frequency: 4763 Hz
Airflow Direction: I/O Side to Bezel Side
Physical Dimensions & Weight:
Dimensions (H x W x D): 1.75 x 17.25 x 17.25 in (44.45 x 438.15 x 438.15 mm)
Weight (Typical): 16.1 lb (7.3 kg)
Rack Height: 1U
Operating Conditions:
Temperature Range: 0°C to 40°C (32°F to 104°F)
Altitude Support: 0 6,560 ft
MTBF: Approx. 587,250 Hours
Warranty & Inclusions
Warranty: 3-Month Carry-In Warranty
What's in the Box?
Cisco ISR4331/K9 V02 Router
Power Cable
Flexible Expansion Modular platform ready for voice, WAN, security, and application optimization.
Reliable Cisco Architecture Built on industry-standard IOS XE with high-performance routing capabilities.
Secure & Scalable Network Edge Perfect for distributed enterprises and growing IT infrastructures.
Refurbished Value Premium enterprise hardware at a fraction of the cost.
